13 cool gadgets we'll see at next week's consumer gadget-a-thon

I'm beginning to wonder why I'm bothering to travel cross-country next week to Las Vegas and fight with an estimated 140,000 other people at the 2012 Consumer Electronics Show, when I could just stay at home and watch a bunch of videos by the vendors themselves.

As part of the pre-show hoopla, several vendors are posting video previews of their wares – here are our favorite devices so far: